Exusia Senior Analyst Interview Questions, Process, and Tips

Use find command to locate files with 0KB size and delete them using the rm command.

• Use find command with -size 0 option to locate files with 0KB size in a directory

• Pipe the output of find command to rm command to delete the files

• Example: find /path/to/directory -type f -size 0 -exec rm {} \;

Use find command with -mtime option to delete files older than 10 days.

• Use find command with -mtime option to search for files older than 10 days.

• Combine find command with -delete option to delete the files found.

Partition components, multifiles, checkpoints, and phases in data processing.

• Partition components refer to dividing data into smaller chunks for processing efficiency.

• Multifiles are multiple files used to store data during processing.

• Checkpoints are markers set during processing to save progress and enable restart from a specific point.

• Phases represent different stages of data processing workflow.

• Example: In a MapReduc...read more

Using lookup for join can be inefficient and lead to performance issues. Sort component can be slow and resource-intensive.

• Lookup for join can be inefficient for large datasets as it requires scanning the entire dataset for each lookup value.

• Join is more optimized for joining datasets based on a common key, while lookup is better suited for smaller reference tables.

• Sort component can be slow and resource-intensive, esp...read more